Classifier



Nov. 16 1926.

, ATI'OR NEY WITNESS:

Nqv. 16 1926. 1,607,490

W. H. TAYLOR CLASS IFIER Filed July 11, 1924 s Sheets-Sheet 2 WITNESS:

Nov. 16 1926.

W. H. TAYLOR V CLASSIFIER 1924 3 Sheets-Sheet 3 Filed July 11 INVENTOR WITNESSE ATTORN EY Patented Nov. 16, 1926.

UNITED STATES 'PTENT OFFICE.

WILLIAM HARVEY TAYLOR, 0F NAB-BEN, ARIZONA.

CLASSIFIER.

Application filed July 11,

This invention relates to improvements in classifiers of the mechanical type for classifying ore.

An object of the invention is the provision of a classifier in which the material enters at the bottom so as to prevent agitation and surging of the pulp which interferes with the proper separation of the coarse particles or sand from the'fine particles.

Another object of the invention is the provision of a classifier in which the coarse material is forced upward toward the discharge end with a continuous motion and in a manner to permit the fine particles of the slimes to rise and be discharged at the end of the classifier remote from the discharge end of the coarse particles or material.

Another object of the invention is the provision of a classifier in which the operating mechanism is entirely enclosed so that danger of accident is reduced to a minimum.

Another object of the invention is the provision of a separator which includes the above and other advantages and which in addition, is simple in construction and operation and which will effectually separate the coarse and fine particles of the slimes so that the separated product will be in proper condition for treatment.

lVith the above and other objects in view, the invention further includes the following A novel features and details of construction, to be hereinafter more fully described, illustrated in the accompanying drawings and pointed out in the appended claims.

In the drawings Figure 1 is a side elevation of a classifier constructed in accordance with the invention.

Figure 2 is a top plan view partly broken away.

Figure 3 is an enlarged sectional view through the classifier.

Referring to the drawings in detail wherein like characters of reference denote corresponding parts, the improved classifier as shown includes a casing or housing having a bottom 10 which inclines upwardly and outwardly from the feed to the discharge end of the classifier. Secured within this bottom are curved plates 11, the curvature of which is disposed longitudinally of the housing and defines concaved depressions or compartments 12. The adjacent edges of the plates 11 are secured as shown at 13 and are arranged in the same horizontal plane,

is located on the same horizontal plane as the connected edges of the plates 11, while at the opposite end of the housing there is an opening 15, whose lower edge isarranged on a horizontal plane above the lower edge of the opening 14 and the upper edges of 05 the bafiles. The lower edges of the opening 14 and the edges of the connected ends of the plates 11 define a slime level. The opening 15 provides a discharge mouth for the coarse particles while the opening 14 provides an overflow mouth for the fine particles, the height of the lower edge of the opening 15 preventing the slime from passing out with the coarse particles. These fine particles fiow through the mouth 14 into a pan 16 and the latter is provided with an overflow or discharge opening 17.

Located within the housing within each of the compartments 12 are spaced spiders m ly extending bars or rakes 19, the latter being disposed tangentially around the edges of the spiders. These spiders are mounted on shafts 20 and the latter are supported in suitable bearings 21. secured upon one of their ends worm wheels 22 which are engaged by worms 23 and the latter are secured upon a shaft 24 which extends longitudinally of one side of the housing.

are covered by housings 25. The shaft 24 at one end has secured thereto a beveled gear 26 which is engaged by a pinion 27 mounted upon a shaft 28 and this last mentioned shaft is provided with fast and loose pulleys 29 to provide means for the operation of the shaft 24. As the shaft 24 is geared to the shafts 20 in the manner described, all of the last mentioned shafts will be continuously rotated in one' direction as shown by the arrows in the drawings. This will act to force the coarse material over the baffles 13 toward the discharge mouth 15, the said bafiles providing raised points of classification.

pan 16. This is in contradistinction to the U0 is whose edges are connected by transverseso These shafts have 85 The worm wheels 22 and worms 90 As the bars 19 continuously revolve 1n the same direction, undue agitareciprocatory rakes commonly employed in devices ot this character, the motion of which caus s agitation and causes a percentage of the coarse particles to overflow with the fine particles, the direction of movement otthe bars or rakes 19 prevents the slimes from passing out through the opening l t.

The first compartment 12 adjacent the overflow mouth 1 is provided with a removable plug closed drain opening 30.

To tur her prevent agitation of the slimes the hon s provided with a feed opening ill which is located at one end adjacent the botton'i ot the housing and the material is led to this opening through a pipe or conduit 32. Thus the material will enter the classifier below the slime level and prevent agitation of the slime.

The housing further includes a cover 33 which may he removably secured in position so that the rotating men hers or bars 19 are normally covered and danger oi accident thereby materially reduced.

The invention is susceptible of various changes in its form, proportions and minor details of construction and the right -is herein reserved to make such changes as properly fall within the scope of the appended claims.

Having described the invention what is claimed is 1. An ore classifier comprising a housing, a plurality ot spaced horizontally disposed transversely extending battles having their upper edges arranged in the same horizontal plane and defining a slime level, said housing having a discharge mouth at each end with the lower edge of one of the discharge mouths on a horizontal plane above the upper edges of the bafile, means located within the housing and adapted to be continuously operated in one direction to force the coarse particles over the baffles in one direction to the discharge mouth and permit the fine particles to rise and overflow through the opposite discharge mouth.

2, An ore classifier comprising a housing, a plurality of spaced horizontally disposed transversely extending bafiles having their upper edges ar anged in the same horizontal plane and defining a slime level, said housing having a discharge mouth at each end with the lower edge of one of the discharge months on a horizontal plane above the up per edges of the hatlles, means located within the housing and adapted to be continuously operated in one direction to force the coars particles over the battles in one direction to the discharge mouth and permit the fine particles to rise and overflow through the opposite discharge mouth and means for directing the feed into the housing below the slime level.

3. in ore classifier comprising a housing, a plurality of longitudinally concaved depresons ot' successively diminishing depths ed in the bottom oi the housing and g separate compartments having the tent edges of their walls connected, saic connected edges defining hafi'les whose upper edges are disposed in the same horizontal plane to define a slime level, said housing having a discharge mouth at each end, with the lower edge of one of the discharge mouths on a horizontal plane above the upper edges of the battles, means located within the housing and adapted to be continuously operated in one direction to force the heavy particles over the battles to one discharge mouth and permit the fine particles to rise and overflow through the other discharge mouth.

ture.

WILLIAM HARVEY TAYLOR.

In testimony whereof I atfix my signa- 

